The answer is
Unitary system : All government power is held by a central government
Answer:
The forms of energy involved are
1. Kinetic energy
2. Potential energy
Explanation:
The system consists of a ball initially at rest. The ball is pulled down from its equilibrium position (this builds up its potential energy) and then released. The released ball oscillates due to a continuous transition between kinetic and potential energy.
Explanation:
The frequency of an organ pipe if it is open is given by :

v is speed of sound in air is 343 m/s at 20°C
For fundamental frequency, n = 1

First overtone frequency,

Second overtone frequency,

Third overtone frequency

Hence, this is the required solution.
Answer:
The distance is 1.4 km.
Explanation:
Given that,
Initial velocity u= 1.7 m/s
Accelerate a= 3.0 m/s²
Time = 30 s
We need to calculate the distance
Using equation of motion

Where, u = initial velocity
a = acceleration
t = time
Put the value in the equation



Hence, The distance is 1.4 km.
You can't see beyond a blind turn, so a mirror would allow you to see around the corner.